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This popular text covers the ratio and proportion, formula, and dimensional analysis methods offering a step-by-step approach to the calculation and administration of drug dosages. With over 2,000 practice problems, Gray Morris focuses on enhancing the learning experience of nursing students at all curricular levels by making content clinically applicable. **Calculate with Confidence, 6th Edition** addresses the increasing responsibility of the nurse in medication administration, prioritizes client safety, and reflects the current scope of practice.

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call attention to information critical to math calculation and patient safety.*Tips for Clinical Practice*boxeshighlight issues that may lead to mediation errors and empower you to identify actions that must be taken to avoid calculation errors*Safety Alert*boxes**Chapter review problems**test all major topics presented in the chapter.**Separate basic math review test**allows you to assess and evaluate your understanding of basic math material covered in Unit 1, directing you to review chapters if you miss any of these test questions.**Pre-test basic math review tests**help you assess your basic math skills and identify areas of strength and weakness in competency of basic math.**Comprehensive unit on basic math review**offers complete coverage of basic math: roman numerals, fractions, decimals, ratio and proportion, and percentages.

**NEW! Integration of QSEN information related to patient safety**in the Medication Administration chapter and throughout text.**NEW! NCLEX-style questions**on Evolve help prepare you for the NCLEX-RN Examination*.***NEW! Content additions and updates**includes word problems involving dosages,*Critical Thinking Scenarios*, a discussion of the concepts regarding safety issues with medication administration, plus significant updates in the insulin, critical care and IV chapters.**NEW! Reorganization of**features answers and the work to practice problems at the end of each chapter rather than in the back of the book.*Answer Key*

**Unit One: Math Review **Pre-Test 1. Roman Numerals 2. Fractions 3. Decimals 4. Ratio and Proportion 5. Percentages Post-Test **Unit Two: Systems of Measurement **6. Metric System 7. Apothecary and Household Systems 8. Converting Within and Between Systems 9. Additional Conversions Useful in the Health Care Setting **Unit Three: Methods of Administration and Calculation **10. Medication Administration 11. Understanding and Interpreting Medication Orders 12. Medication Administration Records and Drug Distribution Systems 13. Reading Medication Labels 14. Dosage Calculation Using the Ratio and Proportion Method 15. Dosage Calculation Using the Formula Method 16. Dosage Calculation Using the Dimensional Analysis Method **Unit Four: Oral and Parenteral Dosage Forms, Insulin and Pediatric Dosage **Calculations 17. Calculation of Oral Medications 18. Parenteral Medications 19. Reconstitution of Solutions 20. Insulin

**Unit Five: Intravenous, Heparin, and Critical Care Calculations and Pediatric Dosage Calculations **22. Intravenous Calculations 23. Heparin Calculations 24. Critical Care Calculations 25. Pediatric and Adult Dosage Calculation Based on Weight Comprehensive Post-Test Answer Key Bibliography Index

Deborah C. Gray Morris, RN, BSN, MA, LNC, Professor of Nursing, Department of Nursing and Allied Health Sciences, Bronx Community College, Bronx, NY